
ifeq ($(obj),)
obj = .
endif
include $(obj)/Make.config

v4l2dir := $(wildcard $(obj)/../v4l2)

#################################################
# compile modules

ifneq ($(KERNELRELEASE),)
# recursive call from kernel build system
dummy		:= $(shell echo $(KERNELRELEASE) > $(obj)/.version)

ifeq ($(VERSION).$(PATCHLEVEL),2.4)
multi-m		:= $(filter $(list-multi), $(obj-m))
int-m		:= $(sort $(foreach m, $(multi-m), $($(basename $(m))-objs)))
else
export-objs	:=
endif

ifneq ($(v4l2dir),)
CC += -I$(v4l2dir)
endif
CC += -I$(obj)

#EXTRA_CFLAGS += -g

-include $(TOPDIR)/Rules.make
else
# take version info from last module build if available
KERNELRELEASE	:= $(shell cat $(obj)/.version 2>/dev/null || uname -r)
endif

KDIR		:= /lib/modules/$(KERNELRELEASE)/build
PWD		:= $(shell pwd)
DEST		:= /lib/modules/$(KERNELRELEASE)/$(MDIR)

# locales seem to cause trouble sometimes.
LC_ALL = POSIX
export LC_ALL

default::
	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules

install::
	strip --strip-debug $(obj-m)
	-su -c "mkdir -p $(DEST); cp -v $(obj-m) $(DEST); depmod -a"

clean::
	-rm -f *~ *.o *.ko *.mod.c
	-rm -f .version .*.o.flags .*.o.d .*.o.cmd .*.ko.cmd


#################################################
# build tarballs

thisdir	:= $(notdir $(PWD))
name	:= $(shell echo $(thisdir) | sed 's/-.*//')
ver	:= $(shell echo $(thisdir) | sed 's/.*-//')
date    := $(shell date +%Y%m%d)
tardest	?= .

snapdir := $(HOME)/snapshot
snap	?= $(name)

release: clean
	(cd ..; tar cvzf $(tardest)/$(name)-$(ver).tar.gz $(thisdir))

snapshot snap tarball: clean
	(cd ..; tar czf $(snapdir)/$(snap)-$(date).tar.gz $(thisdir))
	$(MAKE) -C $(snapdir)


#################################################
# other stuff

%.asm: %.o
	objdump -S $< > $@

-include Make.local

